gdb/
New option "set debug auto-load". * NEWS: New commands "set debug auto-load" and "show debug auto-load". * auto-load.c (debug_auto_load, show_debug_auto_load: New. (auto_load_safe_path_vec_update) (filename_is_in_auto_load_safe_path_vec): Call fprintf_unfiltered if DEBUG_AUTO_LOAD. (file_is_auto_load_safe): New parameters debug_fmt and .... Call fprintf_unfiltered if DEBUG_AUTO_LOAD. (source_gdb_script_for_objfile): Extend the file_is_auto_load_safe caller by explanatory string. (_initialize_auto_load): Register "set debug auto-load". * auto-load.h (file_is_auto_load_safe): New parameters debug_fmt and .... * linux-thread-db.c (try_thread_db_load_from_pdir_1) (try_thread_db_load_from_dir): Extend the file_is_auto_load_safe caller by explanatory string. * main.c (captured_main): Likewise. * python/py-auto-load.c (gdbpy_load_auto_script_for_objfile) (source_section_scripts): Likewise. gdb/doc/ New option "set debug auto-load". * gdb.texinfo (Auto-loading): New menu item for auto-load verbose mode. (auto-load verbose mode): New node.
This commit is contained in:
Jan Kratochvil
parent
bccbefd2aa
commit
4dc84fd109
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@ -1,3 +1,25 @@
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2012-04-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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New option "set debug auto-load".
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* NEWS: New commands "set debug auto-load" and "show debug auto-load".
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* auto-load.c (debug_auto_load, show_debug_auto_load: New.
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(auto_load_safe_path_vec_update)
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(filename_is_in_auto_load_safe_path_vec): Call fprintf_unfiltered
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if DEBUG_AUTO_LOAD.
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(file_is_auto_load_safe): New parameters debug_fmt and ....
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Call fprintf_unfiltered if DEBUG_AUTO_LOAD.
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(source_gdb_script_for_objfile): Extend the file_is_auto_load_safe
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caller by explanatory string.
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(_initialize_auto_load): Register "set debug auto-load".
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* auto-load.h (file_is_auto_load_safe): New parameters debug_fmt
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and ....
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* linux-thread-db.c (try_thread_db_load_from_pdir_1)
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(try_thread_db_load_from_dir): Extend the file_is_auto_load_safe caller
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by explanatory string.
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* main.c (captured_main): Likewise.
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* python/py-auto-load.c (gdbpy_load_auto_script_for_objfile)
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(source_section_scripts): Likewise.
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2012-04-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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New option "set auto-load safe-path".
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4
gdb/NEWS
4
gdb/NEWS
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@ -159,6 +159,10 @@ show auto-load safe-path
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Set a list of directories from which it is safe to auto-load files.
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The delimiter (':' above) may differ according to the host platform.
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set debug auto-load on|off
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show debug auto-load
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Control display of debugging info for auto-loading the files above.
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* New remote packets
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z0/z1 conditional breakpoints extension
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@ -43,6 +43,20 @@
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static void source_gdb_script_for_objfile (struct objfile *objfile, FILE *file,
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const char *filename);
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/* Value of the 'set debug auto-load' configuration variable. */
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static int debug_auto_load = 0;
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/* "show" command for the debug_auto_load configuration variable. */
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static void
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show_debug_auto_load (struct ui_file *file, int from_tty,
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struct cmd_list_element *c, const char *value)
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{
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fprintf_filtered (file, _("Debugging output for files "
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"of 'set auto-load ...' is %s.\n"),
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value);
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}
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/* User-settable option to enable/disable auto-loading of GDB_AUTO_FILE_NAME
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scripts:
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set auto-load gdb-scripts on|off
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@ -112,6 +126,11 @@ auto_load_safe_path_vec_update (void)
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unsigned len;
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int ix;
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if (debug_auto_load)
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fprintf_unfiltered (gdb_stdlog,
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_("auto-load: Updating directories of \"%s\".\n"),
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auto_load_safe_path);
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free_char_ptr_vec (auto_load_safe_path_vec);
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auto_load_safe_path_vec = dirnames_to_char_ptr_vec (auto_load_safe_path);
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@ -126,14 +145,34 @@ auto_load_safe_path_vec_update (void)
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char *real_path = gdb_realpath (expanded);
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/* Ensure the current entry is at least tilde_expand-ed. */
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xfree (dir);
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VEC_replace (char_ptr, auto_load_safe_path_vec, ix, expanded);
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if (debug_auto_load)
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{
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if (strcmp (expanded, dir) == 0)
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fprintf_unfiltered (gdb_stdlog,
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_("auto-load: Using directory \"%s\".\n"),
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expanded);
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else
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fprintf_unfiltered (gdb_stdlog,
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_("auto-load: Resolved directory \"%s\" "
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"as \"%s\".\n"),
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dir, expanded);
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}
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xfree (dir);
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/* If gdb_realpath returns a different content, append it. */
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if (strcmp (real_path, expanded) == 0)
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xfree (real_path);
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else
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VEC_safe_push (char_ptr, auto_load_safe_path_vec, real_path);
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{
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VEC_safe_push (char_ptr, auto_load_safe_path_vec, real_path);
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if (debug_auto_load)
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fprintf_unfiltered (gdb_stdlog,
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_("auto-load: And canonicalized as \"%s\".\n"),
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real_path);
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}
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}
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}
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@ -217,16 +256,30 @@ filename_is_in_auto_load_safe_path_vec (const char *filename,
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if (dir == NULL)
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{
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if (*filename_realp == NULL)
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*filename_realp = gdb_realpath (filename);
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{
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*filename_realp = gdb_realpath (filename);
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if (debug_auto_load && strcmp (*filename_realp, filename) != 0)
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fprintf_unfiltered (gdb_stdlog,
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_("auto-load: Resolved "
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"file \"%s\" as \"%s\".\n"),
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filename, *filename_realp);
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}
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for (ix = 0; VEC_iterate (char_ptr, auto_load_safe_path_vec, ix, dir);
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++ix)
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if (filename_is_in_dir (*filename_realp, dir))
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break;
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if (strcmp (*filename_realp, filename) != 0)
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for (ix = 0; VEC_iterate (char_ptr, auto_load_safe_path_vec, ix, dir);
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++ix)
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if (filename_is_in_dir (*filename_realp, dir))
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break;
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}
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if (dir != NULL)
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return 1;
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{
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if (debug_auto_load)
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fprintf_unfiltered (gdb_stdlog, _("auto-load: File \"%s\" matches "
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"directory \"%s\".\n"),
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filename, dir);
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return 1;
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}
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return 0;
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}
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@ -240,11 +293,20 @@ filename_is_in_auto_load_safe_path_vec (const char *filename,
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directory. */
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int
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file_is_auto_load_safe (const char *filename)
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file_is_auto_load_safe (const char *filename, const char *debug_fmt, ...)
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{
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char *filename_real = NULL;
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struct cleanup *back_to;
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if (debug_auto_load)
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{
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va_list debug_args;
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va_start (debug_args, debug_fmt);
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vfprintf_unfiltered (gdb_stdlog, debug_fmt, debug_args);
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va_end (debug_args);
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}
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back_to = make_cleanup (free_current_contents, &filename_real);
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if (filename_is_in_auto_load_safe_path_vec (filename, &filename_real))
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@ -281,7 +343,10 @@ source_gdb_script_for_objfile (struct objfile *objfile, FILE *file,
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struct auto_load_pspace_info *pspace_info;
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volatile struct gdb_exception e;
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is_safe = file_is_auto_load_safe (filename);
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is_safe = file_is_auto_load_safe (filename, _("auto-load: Loading canned "
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"sequences of commands script "
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"\"%s\" for objfile \"%s\".\n"),
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filename, objfile->name);
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/* Add this script to the hash table too so "info auto-load gdb-scripts"
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can print it. */
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@ -975,4 +1040,13 @@ See the commands 'set auto-load safe-path' and 'show auto-load safe-path' to\n\
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access the current full list setting."),
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&cmdlist);
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set_cmd_completer (cmd, filename_completer);
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add_setshow_boolean_cmd ("auto-load", class_maintenance,
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&debug_auto_load, _("\
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Set auto-load verifications debugging."), _("\
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Show auto-load verifications debugging."), _("\
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When non-zero, debugging output for files of 'set auto-load ...'\n\
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is displayed."),
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NULL, show_debug_auto_load,
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&setdebuglist, &showdebuglist);
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}
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@ -55,6 +55,7 @@ extern struct cmd_list_element **auto_load_set_cmdlist_get (void);
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extern struct cmd_list_element **auto_load_show_cmdlist_get (void);
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extern struct cmd_list_element **auto_load_info_cmdlist_get (void);
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extern int file_is_auto_load_safe (const char *filename);
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extern int file_is_auto_load_safe (const char *filename,
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const char *debug_fmt, ...);
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#endif /* AUTO_LOAD_H */
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@ -1,3 +1,9 @@
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2012-04-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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New option "set debug auto-load".
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* gdb.texinfo (Auto-loading): New menu item for auto-load verbose mode.
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(auto-load verbose mode): New node.
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2012-04-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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New option "set auto-load safe-path".
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@ -20978,6 +20978,7 @@ These are @value{GDBN} control commands for the auto-loading:
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* libthread_db.so.1 file:: @samp{set/show/info auto-load libthread-db}
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* objfile-gdb.gdb file:: @samp{set/show/info auto-load gdb-script}
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* Auto-loading safe path:: @samp{set/show/info auto-load safe-path}
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* Auto-loading verbose mode:: @samp{set/show debug auto-load}
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@xref{Python Auto-loading}.
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@end menu
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@ -21176,6 +21177,45 @@ entries again. @value{GDBN} already canonicalizes most of the filenames on its
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own before starting the comparison so a canonical form of directories is
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recommended to be entered.
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@node Auto-loading verbose mode
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@subsection Displaying files tried for auto-load
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@cindex auto-loading verbose mode
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For better visibility of all the file locations where you can place scripts to
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be auto-loaded with inferior --- or to protect yourself against accidental
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execution of untrusted scripts --- @value{GDBN} provides a feature for printing
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all the files attempted to be loaded. Both existing and non-existing files may
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be printed.
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For example the list of directories from which it is safe to auto-load files
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(@pxref{Auto-loading safe path}) applies also to canonicalized filenames which
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may not be too obvious while setting it up.
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@smallexample
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(gdb) set debug auto-load ues
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(gdb) file ~/src/t/true
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auto-load: Loading canned sequences of commands script "/tmp/true-gdb.gdb"
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for objfile "/tmp/true".
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auto-load: Updating directories of "/usr:/opt".
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auto-load: Using directory "/usr".
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auto-load: Using directory "/opt".
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warning: File "/tmp/true-gdb.gdb" auto-loading has been declined
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by your `auto-load safe-path' set to "/usr:/opt".
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@end smallexample
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@table @code
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@anchor{set debug auto-load}
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@kindex set debug auto-load
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@item set debug auto-load [on|off]
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Set whether to print the filenames attempted to be auto-loaded.
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@anchor{show debug auto-load}
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@kindex show debug auto-load
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@item show debug auto-load
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Show whether printing of the filenames attempted to be auto-loaded is turned
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on or off.
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@end table
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@node Messages/Warnings
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@section Optional Warnings and Messages
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@ -870,7 +870,9 @@ try_thread_db_load_from_pdir_1 (struct objfile *obj)
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gdb_assert (cp != NULL);
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strcpy (cp + 1, LIBTHREAD_DB_SO);
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if (!file_is_auto_load_safe (path))
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if (!file_is_auto_load_safe (path, _("auto-load: Loading libthread-db "
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"library \"%s\" from $pdir.\n"),
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path))
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result = 0;
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else
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result = try_thread_db_load (path);
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@ -940,7 +942,10 @@ try_thread_db_load_from_dir (const char *dir, size_t dir_len)
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path[dir_len] = '/';
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strcpy (path + dir_len + 1, LIBTHREAD_DB_SO);
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if (!file_is_auto_load_safe (path))
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if (!file_is_auto_load_safe (path, _("auto-load: Loading libthread-db "
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"library \"%s\" from explicit "
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"directory.\n"),
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path))
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result = 0;
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else
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result = try_thread_db_load (path);
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@ -945,7 +945,10 @@ captured_main (void *data)
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auto_load_local_gdbinit_pathname = gdb_realpath (local_gdbinit);
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if (!inhibit_gdbinit && auto_load_local_gdbinit
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&& file_is_auto_load_safe (local_gdbinit))
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&& file_is_auto_load_safe (local_gdbinit,
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_("auto-load: Loading .gdbinit "
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"file \"%s\".\n"),
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local_gdbinit))
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{
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auto_load_local_gdbinit_loaded = 1;
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@ -75,7 +75,10 @@ gdbpy_load_auto_script_for_objfile (struct objfile *objfile, FILE *file,
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int is_safe;
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struct auto_load_pspace_info *pspace_info;
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is_safe = file_is_auto_load_safe (filename);
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is_safe = file_is_auto_load_safe (filename,
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_("auto-load: Loading Python script \"%s\" "
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"by extension for objfile \"%s\".\n"),
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filename, objfile->name);
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/* Add this script to the hash table too so "info auto-load python-scripts"
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can print it. */
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@ -153,7 +156,12 @@ source_section_scripts (struct objfile *objfile, const char *source_name,
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make_cleanup_fclose (stream);
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make_cleanup (xfree, full_path);
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if (!file_is_auto_load_safe (full_path))
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if (!file_is_auto_load_safe (full_path,
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_("auto-load: Loading Python script "
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"\"%s\" from section \"%s\" of "
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"objfile \"%s\".\n"),
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full_path, GDBPY_AUTO_SECTION_NAME,
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objfile->name))
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opened = 0;
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}
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else
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Loading…
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